Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2011-08-01

Journal: INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS

Included Journals: SCIE

Volume: 50

Issue: 8

Page Number: 2552-2559

ISSN: 0020-7748

Key Words: Insulator state; Superfluid state; Ground-state entanglement; Coupled cavity

Abstract: We study two coupled cavities, each of which contains two two-level atoms. We identify the regions of Mott-insulator and superfluid states. Ground-state entanglement of two atoms in one cavity has been investigated. The result show that quantum entanglement of two atoms within one cavity can also characterize quantum phase transition.